305 lines
8.2 KiB
C++
305 lines
8.2 KiB
C++
#include <cstdint>
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#include "align.hpp"
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#include "twiddle.hpp"
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#include "memorymap.hpp"
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#include "holly/video_output.hpp"
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#include "holly/region_array.hpp"
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#include "holly/background.hpp"
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#include "holly/texture_memory_alloc3.hpp"
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#include "holly/holly.hpp"
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#include "holly/core.hpp"
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#include "holly/core_bits.hpp"
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#include "holly/ta_fifo_polygon_converter.hpp"
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#include "holly/ta_global_parameter.hpp"
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#include "holly/ta_bits.hpp"
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#include "sh7091/sh7091.hpp"
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#include "sh7091/sh7091_bits.hpp"
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#include "sh7091/serial.hpp"
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#include "sh7091/vbr.hpp"
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#include "systembus.hpp"
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#include "systembus_bits.hpp"
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#include "font/font.h"
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#include "font/terminus/ter_u20n.data.h"
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#include "gap_buffer.hpp"
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#include "viewport_window.hpp"
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#include "keyboard.hpp"
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#include "render.hpp"
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void vbr100()
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{
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serial::string("vbr100\n");
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serial::string("expevt ");
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serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
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serial::string("intevt ");
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serial::integer<uint16_t>(sh7091.CCN.INTEVT);
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serial::string("tra ");
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serial::integer<uint16_t>(sh7091.CCN.TRA);
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while (1);
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}
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void vbr400()
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{
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serial::string("vbr400");
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serial::string("expevt ");
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serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
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serial::string("intevt ");
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serial::integer<uint16_t>(sh7091.CCN.INTEVT);
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serial::string("tra ");
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serial::integer<uint16_t>(sh7091.CCN.TRA);
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while (1);
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}
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static int render_done = 0;
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void vbr600()
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{
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if (sh7091.CCN.EXPEVT == 0 && sh7091.CCN.INTEVT == 0x320) {
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uint32_t istnrm = system.ISTNRM;
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uint32_t isterr = system.ISTERR;
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if (isterr) {
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serial::string("isterr: ");
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serial::integer<uint32_t>(system.ISTERR);
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}
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if (istnrm & istnrm::end_of_render_tsp) {
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system.ISTNRM = istnrm::end_of_render_tsp
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| istnrm::end_of_render_isp
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| istnrm::end_of_render_video;
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render_done = 1;
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return;
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}
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}
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serial::string("vbr600");
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serial::string("expevt ");
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serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
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serial::string("intevt ");
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serial::integer<uint16_t>(sh7091.CCN.INTEVT);
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serial::string("tra ");
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serial::integer<uint16_t>(sh7091.CCN.TRA);
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serial::string("istnrm: ");
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serial::integer<uint32_t>(system.ISTNRM);
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serial::string("isterr: ");
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serial::integer<uint32_t>(system.ISTERR);
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serial::string("halt\n");
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while (1);
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}
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void interrupt_init()
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{
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system.IML2NRM = 0;
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system.IML2ERR = 0;
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system.IML2EXT = 0;
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system.IML4NRM = 0;
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system.IML4ERR = 0;
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system.IML4EXT = 0;
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system.IML6NRM = 0;
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system.IML6ERR = 0;
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system.IML6EXT = 0;
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system.ISTERR = 0xffffffff;
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system.ISTNRM = 0xffffffff;
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sh7091.CCN.INTEVT = 0;
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sh7091.CCN.EXPEVT = 0;
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uint32_t vbr = reinterpret_cast<uint32_t>(&__vbr_link_start) - 0x100;
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serial::string("vbr ");
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serial::integer<uint32_t>(vbr);
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serial::string("vbr100 ");
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serial::integer<uint32_t>(reinterpret_cast<uint32_t>(&vbr100));
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asm volatile ("ldc %0,vbr"
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:
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: "r" (vbr));
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uint32_t sr;
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asm volatile ("stc sr,%0"
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: "=r" (sr));
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serial::string("sr ");
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serial::integer<uint32_t>(sr);
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sr &= ~sh::sr::bl; // BL
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sr &= ~sh::sr::imask(15); // imask
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serial::string("sr ");
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serial::integer<uint32_t>(sr);
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asm volatile ("ldc %0,sr"
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:
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: "r" (sr));
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}
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void transfer_ta_fifo_texture_memory_32byte(void * dst, const void * src, int length)
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{
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uint32_t out_addr = (uint32_t)dst;
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sh7091.CCN.QACR0 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
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sh7091.CCN.QACR1 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
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volatile uint32_t * base = &store_queue[(out_addr & 0x03ffffe0) / 4];
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const uint32_t * src32 = reinterpret_cast<const uint32_t *>(src);
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length = (length + 31) & ~31; // round up to nearest multiple of 32
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while (length > 0) {
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base[0] = src32[0];
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base[1] = src32[1];
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base[2] = src32[2];
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base[3] = src32[3];
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base[4] = src32[4];
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base[5] = src32[5];
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base[6] = src32[6];
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base[7] = src32[7];
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asm volatile ("pref @%0"
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: // output
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: "r" (&base[0]) // input
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: "memory");
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length -= 32;
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base += 8;
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src32 += 8;
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}
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}
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void transfer_texture(const void * src, uint32_t size)
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{
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system.LMMODE0 = 0; // 64-bit address space
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system.LMMODE1 = 0; // 64-bit address space
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uint32_t offset = texture_memory_alloc.texture.start;
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void * dst = reinterpret_cast<void *>(&ta_fifo_texture_memory[offset / 4]);
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transfer_ta_fifo_texture_memory_32byte(dst, src, size);
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}
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uint32_t ta_parameter_buf[1024 * 1024 / 4] __attribute__((aligned(32)));
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struct editor_state {
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gap_buffer gb;
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viewport_window window;
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};
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constexpr uint32_t buf_size = 16 * 1024;
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char_type buf[buf_size];
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constexpr uint32_t offsets_size = 1024;
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int32_t offsets[offsets_size];
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void transfer_palettes()
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{
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holly.PAL_RAM_CTRL = pal_ram_ctrl::pixel_format::argb1555;
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holly.PALETTE_RAM[0] = 0x0000;
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holly.PALETTE_RAM[1] = 0xffff;
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}
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void main()
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{
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serial::init(0);
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const struct font * font = reinterpret_cast<const struct font *>(&_binary_font_terminus_ter_u20n_data_start);
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const struct glyph * glyphs = reinterpret_cast<const struct glyph *>(&font[1]);
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const void * texture = reinterpret_cast<const void *>(&glyphs[font->glyph_count]);
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transfer_texture(texture, font->max_z_curve_ix);
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transfer_palettes();
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constexpr uint32_t ta_alloc = ta_alloc_ctrl::pt_opb::no_list
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| ta_alloc_ctrl::tm_opb::no_list
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| ta_alloc_ctrl::t_opb::_16x4byte
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| ta_alloc_ctrl::om_opb::no_list
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| ta_alloc_ctrl::o_opb::_16x4byte;
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const int render_passes = 1;
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constexpr struct opb_size opb_size[render_passes] = {
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{
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.opaque = 16 * 4,
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.opaque_modifier = 0,
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.translucent = 16 * 4,
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.translucent_modifier = 0,
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.punch_through = 0
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}
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};
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holly.SOFTRESET = softreset::pipeline_soft_reset
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| softreset::ta_soft_reset;
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holly.SOFTRESET = 0;
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const int framebuffer_width = 640;
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const int framebuffer_height = 480;
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const int tile_width = framebuffer_width / 32;
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const int tile_height = framebuffer_height / 32;
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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render_passes,
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texture_memory_alloc.region_array[0].start,
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texture_memory_alloc.object_list[0].start);
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background_parameter2(texture_memory_alloc.background[0].start,
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0xff202040);
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core_init();
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uint32_t frame_ix = 0;
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struct editor_state state = { 0 };
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gap_init_from_buf(state.gb, buf, buf_size, 0);
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line_init_from_buf(state.gb, offsets, offsets_size);
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viewport_init_fullscreen(state.window, font);
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ft6::data_transfer::data_format keyboards[2] = { 0 };
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ta_parameter_writer writer = ta_parameter_writer(ta_parameter_buf);
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interrupt_init();
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system.IML6NRM = istnrm::end_of_render_tsp;
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video_output::set_mode_vga();
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while (true) {
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keyboard_do_get_condition(keyboards[frame_ix & 1]);
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keyboard_debug(keyboards, frame_ix);
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keyboard_update(keyboards, frame_ix, state.gb, state.window);
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ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters[0].start,
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texture_memory_alloc.isp_tsp_parameters[0].end,
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texture_memory_alloc.object_list[0].start,
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texture_memory_alloc.object_list[0].end,
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opb_size[0].total(),
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ta_alloc,
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tile_width,
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tile_height);
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writer.offset = 0;
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render(writer, font, glyphs, state.gb, state.window);
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ta_polygon_converter_writeback(writer.buf, writer.offset);
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ta_polygon_converter_transfer(writer.buf, writer.offset);
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ta_wait_translucent_list();
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render_done = 0;
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core_start_render2(texture_memory_alloc.region_array[0].start,
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texture_memory_alloc.isp_tsp_parameters[0].start,
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texture_memory_alloc.background[0].start,
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texture_memory_alloc.framebuffer[frame_ix].start,
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framebuffer_width);
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while (render_done == 0) {
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asm volatile ("nop");
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};
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while (!spg_status::vsync(holly.SPG_STATUS));
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holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[frame_ix].start;
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while (spg_status::vsync(holly.SPG_STATUS));
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frame_ix = (frame_ix + 1) & 1;
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}
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}
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